The Johansson 4521 is a TAP-type coaxial distribution component with 1 input and 2 tap outputs. Offering 15 dB insertion loss and 30 dB port isolation, it serves two subscriber connections at a single tap point while maintaining adequate through-signal for further cascade stages.

DC pass capability allows voltage to travel through the coaxial cable, enabling direct powering of active components such as masthead amplifiers or LNBs on the same line without a separate supply cable.

Key Features

• TAP configuration: 1 input, 2 outputs
• Frequency range: 5–2300 MHz, covering terrestrial, satellite, and DOCSIS bands
• DC pass on the input port
• Insertion loss: 15 dB
• Isolation between output ports: 30 dB
• Return loss on input and output: 10 dB

Product Benefits

• 15 dB tap level is suited for intermediate positions in a distribution cascade, providing signal for two drops without excessive trunk signal loss
• 30 dB isolation — higher than the 4520 model — provides strong port separation, reducing cross-talk between the two tap outputs and the through path
• Two simultaneous outputs serve dual subscriber drops from a single fitting, simplifying the distribution architecture
• Wide 5–2300 MHz bandwidth covers terrestrial, satellite, and broadband signals in a single passive unit

Technical Specifications

• Model: Johansson 4521
• Type: TAP splitter
• Inputs: 1
• Outputs: 2
• Frequency Range: 5–2300 MHz
• Insertion Loss: 15 dB
• Isolation: 30 dB
• Return Loss (in/out): 10 dB
• DC Pass: Yes

Why You'll Love It

• Steps up from the 4520 with 30 dB isolation for better port separation at a 15 dB tap loss
• Two outputs remove the need for a separate two-way splitter downstream of the tap
• DC pass keeps active antenna system components powered through the same coaxial run
• Consistent with the Johansson 452x series footprint, enabling same-enclosure mixing with other tap values